The Cool On Contact Pillow (Medium Density).

Using patented fabric developed for NASA to help keep astronauts cool in space, this is the pillow that provides a comfortably cool sleeping surface. Available only from Hammacher Schlemmer, millions of invisible microcapsules inside the pillow shell absorb excess heat and move the warmth away from the head and neck until the pillow eventually reaches the ambient temperature. As you shift positions naturally while you sleep, the vacated area of the pillow recovers its cooling properties. The patented fabric covers both sides of the pillow and it is filled with a spiral-crimped polyester that has a loose, thread-like texture for long-lasting loft. The 100% cotton cover is hypoallergenic, removable, and washable.

My brother-in-law always feels his pillows get too warm but this one disperses the heat and is therefore more comfortable. He got the medium cushioning version for people who sleep on their side or stomach.

I purchased this in a whim, knowing that if I didn't like it I could send it back... At first I thought it would be too soft, until I feel asleep and didn't move until the alarm went off in the morning... it was the best night's sleep I have gotten in a long time! I have enjoyed this one so much that I purchased a second one for my rv...I would highly recommend this pillow!

The Cool Contact Pillow might work as advertised in space (for NASA) but it sure does not cool on contact for me. Basically its a comfortable "normal" pillow. I guess I expected more "cool feel" based on the description (and price) but frankly can't see much difference than a high quality down pillow. Perhaps the lower density works better (I purchased medium density). Also I live in a hot climate (summer time) so maybe winter time the pillow will cool better.